Welded-wire fabric.



NIB. CLARK. WELDED WIRE FABRIC.

APPLICATION rum) 001231. 1907.

980,602, Patented Jam 3, 1911.

lNVENTOH Nouns 1mm cmuax, 'or rnamvmm, commence-r.

wnnnn-wmn FABRIC.

Specification of Letter: l'a'tent.

Patented Jan. 3, 1911.

Application filed qctober 81, 1907. Serial No. 400,120.

To all wliom it may concern:

Be it known that I, NORRIS ELMORE CLARK, a citizen of the United States, residing at Plainville, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Welded- Wire Fabrics, of which the following is a specification.

My invention relates to improvements in wire fabrics. It has been customar twisted and cross-welde fabrics of wire. All such fabrics, however, are uneven in thickness and necessarily irregular in strength. While it has been proposed to roll down such fabrics, the rolling only impers fectly smooths the fabric and does in fact weaken it greatly at the points of intersection of the wires. The woven and crossed wire fabrics. require out off and stop mech-' I anism expensive to install and keep up, and

in the twisted fabrics injury to the w1res at the joints is likely. L

' To obviate these difficulties and to produce a flat product is my main object.

Another object is to produce the welded fabric economically and uniformly.

The fabric consists in its preferred form of a series of wires bent to contact with each other in a single plane and welded at their points of contact, as hereinafter more fully set forth.

The accompanying single sheet of drawings illustrates the product of my invention in several forms.

Figure 1 is a view of my fabric with the wires all running longitudinally. Fig. 2'is a fragmentary enlarged viewof the same. Fig. 3 is a sectional view of the same on the line X-X, Fig. 1. Figs. 4 and 5 show variations of the main form of Fig. 1. Fig.

body'of the fabric. Wire 4 is welded to wires 1 and 2 at series of points such as 7, 7, and 8,8. Similarly the other wlres are united, all being welded on the lateral faces of their apices. To reinforce the body,'borto form woven,-

der wires 9 and 10 are welded to the outer side wires of the body at points such as 11, 11 and 12, 12. All these wires, body and sides .lie in the same plane so that uniform thickness is secured. The welding ofthe joints reduces the width of the bonds or joints to something less than twice the diameter of the wire, but leaves it wider than the diameter of a sin Ie wire. A certain stiffness is thus attaine although the fabric is still flexible and adaptable to a multiplicity of uses, such as guards, illes, lattice, fencing, trellis, screens, has ets, gratings, furnitureand reinforcement for concrete, asbestos, glass, etc. -After welding, the fabric may be passed through rolls and reduced so as to form thin, wide strands, with smooth, rounded edges particularly suited to use in exposed places where high finish is desired.

In the form shown in ig. 4, only half the wires are bent, such as wires 1, 2 and 3, while the wires 13 and 14 are left straight. This makes a stronger product .than 1, but

takes more wire for a given area, since on substantially half the width is produced b an equal number of strands.

In Fig. 5 a straight wire 15 is interpfied between wires 4 and 2 for additional reinforcement, being welded at points 16, 16.

All the forms thus far described may be made in continuous lengths sincethe wires can all be run off from reels directly to suit-' able bending mechanismand then to the welding devices.

In the form shown in Fig. 6, the body is formed from transverse wires 17 and 18 welded together as at 19 and welded at their ends to the side wires as at 20. This produces a difi'erent design and is more suitable to certain classes of work, but it requires the use of cut-off mechanism in its manufacture.

The advantages of the product are its smoothness, flatness, ease of manufacture and its general adaptability.

What I claim is 1. A flat wire fabric consisting of a series of wires all lying in the same plane, some of said wires being bent to meet the adjacent wires and welded at the points of contact. 2. A wire fabric consisting of a body portion formed of non-intersecting zlg-zag wires and longitudinal border wires all electrically welded at their contacting points.

3. A welded wire fabric consisting of a plurality of longitudinally arranged wires,

their alternating lateral apices to the adjacent wires, and reinforcing straight wires welded to the bent wires.

5. A wire fabric consisting of a series of bent wires brought together at their a ices and welded side to side in a common plane.

6. A welded wire fabric consisting of continuous longitudinal wires, a plurality of which wires are angulated and alternately contact with and are welded to adjacent wires.

7. A welded wire fabric consisting of continuous longitudinally extending wires, some of which are straight and contact with and are welded to an intermediate angulated longitudinalwire at intervals.

8. A welded wire fabric, comprising a body made up of a plurality of angulated Wires welded to each other at intervals and forming substantially continuous and inextensible diagonals, and substantially straight longitudinal border wires welded to the edges of the body portion.

9. A wire fabric composed of strand wires arranged in pairs, portions of the wires of each pair being brought together and welded at their points of contact, and separating wires between adjacent pairs and welded thereto.

In testimon whereof I aflix my signature in presence 0 two witnesses.

NORRIS ELMORE CLARK.

Witnesses:

D. G. CLARK, A. V. BROOK. 

